Question

1. Draw one string of ten (10) phospholipids. Label the hydrophilic heads and the hydrophobic tails. (3 points) chrohobia hrudiephilic CH₂-CH-CH 2. What are the basic components of one phospholipid molecule? (3 points) 3. Draw a phospholipid bilayer. Label the hydrophilic heads and the hydrophobic tails. (3 points) 4. Cell membranes are made of phospholipid bilayers. Why is it important for there to be both hydrophilic and hydrophobic components of the membranes that surround all of our cells and organelles? (2 points)

Answer 1

Comline Answer. O=p é head Hydrophobi / phosphate ELCHE Glycerol =O C =0 Hydrophobe tails - Unsaturated fatty awal I W Answer-2 C A Two hydrophobi tally and tails. Hydrophilie head phosphate) These two with each molecule component other by attach glycner

- Answer.3 Date I I Choogd trophetie head Shate రంతరం lepid bilayer sharpho tydrophoku tait - Answer-4 Hydrophele ends are bolar that toboardy oueride. It is sand witch lite structure in which hydrofile headfau oulaide Linnate en veronment). Hydrophokil toile are remain in middle which is non polar. Thawborto the molecule through me uumenebrane. Only Lipophile solutes can easily pass through bilayer Hydrophilie head interact with to polar / watu Inuing) molecules This allow pasage of proteine, water and many other woede Hydrophobie shalir tail made up of fatty and These chain make hydrophobel to tails Wilayu packtightly -cell need to be expel any outer adueous out flow a content from on enflow cytosol

Comlin Page Date flow of nutrienta are regulated through hydrophobi channet. nature of membrane. This unflow and out flow should be maentained for cell sewival